|
Post by koldenburg on Oct 20, 2014 16:25:43 GMT -8
I hate to even ask as it's clear that a standard vertical chimney will perform better... That said, I finally may have some time to mess around with these things again and I'd like to try the mud/cob/finishing in my workshop in which I'd rather not put a vertical chimney through the roof. I'd like to play around there before planning on bringing into the house. Is it possible to have a mostly reliable system with a horizontal exhaust? Could I do a taller riser, no bends in a bench and exhaust on the leeward side and have good chances of success? Has anyone actually measured the pressures in different areas of the j tub set up? Thanks.
|
|
JJ
Junior Member
Posts: 56
|
Post by JJ on Oct 20, 2014 18:01:54 GMT -8
|
|
|
Post by koldenburg on Oct 20, 2014 19:02:26 GMT -8
Thanks Twisted, just what I was looking for.
|
|
|
Post by mwalimu on Oct 22, 2014 11:10:20 GMT -8
I also play around with the idea of a reliable horizontal outlet. You can check this thread - with a good suggestion from donkey how to solve it. donkey32.proboards.com/thread/1375/designing-heater-calorific-value-technologyHow to increase the push: - long riser - good lightweight insulation on riser and fire chamber - primary air on the bottom of the fire chamber while closing the top of the feeder with a lid for feeding - adding a s-channel for secondary air - big space from riser to the top of the drum How to decrease the reduction of gas speed inside the system: - big volume above the riser - smooth corners and bends - no tee at a corner How to increase sucking action: - a bell with a slotted vertical partition to convert the rising / falling action of cooling gasses into gas speed. - steadily cooling gasses to create a (sucking) vacuum - a small riser at the end of the duct before going outside. - heating up the gasses a before exhausting (through leading the end of the pipe through a somehow warm bell etc) - putting a vertical tee at the end of the exhaust outside, so the gasses can go up and down, depending on their temperature, thereby adding some draft Last point also helps to prevent wind blowing into the horizontal pipe. Not everything is already tried, but these are the possibilities. And yes you can add a fan at the end of the pipe. This will work for sure and you can neglect a lot of other issues - most modern heater are doing this. Don't give up easily!
|
|
|
Post by Dan (Upstate NY, USA) on Oct 24, 2014 1:08:53 GMT -8
As an traditional hand seam roofer I totally agree. Thats why I encourage people to make external roofs that go up the sides of the house instead of through the roof.
If you can vent out a wall, then you can go up the side of the house too.
|
|